Frequency (Hz) - Extech Instruments MA440 User Manual

Resistance
Open Circuit Voltage: Approx. 1.5V (MA440) and 0.4V (MA443 and MA445)
Continuity
Continuity: Beeper ON < 30Ω. Beeper OFF >60Ω. Beeper unspecified >30Ω and <60Ω
Diode
Open Circuit Voltage: Approx. 1.5V (MA440) and 3V (MA443 and MA445)
Capacitance
(MA440)
Capacitance
(MA443 and MA445)

Frequency (Hz)

Sensitivity:
MA440 (10Hz~1MHz): 200mVrms ≤input amplitude ≤20Vrms
MA443 and MA445 (≤100kHz): 100mVrms ≤ input amplitude ≤20Vrms (100kHz~1Mz): 200mVrms ≤ input
amplitude ≤20Vrms.
Duty Cycle (%)
Input amplitude: 500mVrms ≤ Input amplitude ≤ 20Vrms;
Duty Cycle applies to ≤10kHz Square Wave
Specified accuracy range: 10% ~ 90% range
400.0 Ω 0.1 Ω
4.000k Ω 0.001k Ω
40.00k Ω 0.01k Ω
400.0k Ω 0.1k Ω
4.000M Ω 0.001M Ω
40.00M Ω 0.01M Ω
400.0 Ω 0.1 Ω
4.000V 0.001V
50.00nF 0.01 nF
500.0nF 0.1 nF
5.000 µF 0.001 µF
50.00 µF 0.01 µF
100.0 µF 0.1 µF
40.00nF 0.01 nF
400.0nF 0.1 nF
4.000 µF 0.001 µF
40.00 µF 0.01 µF
400.0 µF 0.1 µF
4.000 mF 0.001 mF
40.00 mF 0.01 mF
10Hz~1MHz 0.01Hz~1kHz
0.1 ~ 99.9% 0.1%
± (1.2% + 2 digits)
± (1.0% + 2 digits)
± (1.2% + 3 digits)
± (2.0% + 5 digits)
± (1.2% + 2 digits)
Silicon PN junction 0.5
to 0.8V (typically)
± (4.0% + 25 digits)
± (4.0% + 5 digits)
± (4.0% + 25 digits)
± (4.0% + 5 digits)
± (10%)
For reference only
± (0.1% + 4 digits)
± (2.5%)
19
600V AC/DC
600V AC/DC
600V AC/DC
600V AC/DC
600V AC/DC
600V AC/DC
600V AC/DC
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